GUID-FF99F2A3-811A-4DAD-85E0-23AEC4C57183-ANSI V1 EN
Figure 116: Single-phase ground fault, phase A
In an example case of a two-phase short-circuit failure where the fault is between phases
B and C, the angle difference is measured between the polarizing quantity V
BC
and
operating quantity I
B
- I
C
in the self-polarizing method.
GUID-7CBA5DD4-CABC-4365-A4E3-4B5F73527ECA-ANSI V1 EN
Figure 117: Two-phase short circuit, short circuit is between phases B and C
1MAC059074-MB A Section 4
Protection functions
615 series ANSI 241
Technical Manual